External focus training for reacquisition of knee function in a Down syndrome patient after surgery for recurrent patellar dislocation: a case report.
Kyoko Kanae, Hirotaka Mutsuzaki, Yoshihide Kanai
PMID 30568334WHAT IT FOUND
For a woman with Down syndrome and an IQ of 20, focusing attention on a ball rather than her knee helped her regain walking control after patellar surgery.
Her walking distance increased from 100 meters to over 2 kilometers, and knee motion improved significantly.
Key findings
01External focus training using a ball target allowed the patient to regain selective knee movement and improve gait patterns after surgery.
02Walking capacity increased from 100 meters to more than 2 kilometers, and walking speed improved from 0.83 m/s to 1.11 m/s.
03Knee range of motion during walking improved from 2-23 degrees to 0-68 degrees, eliminating compensatory hyperextension.
STILL TO COME
How it was doneWhat they foundWhat it means for PTs
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What it does not show
This is a single case report, so the results cannot be generalized to other patients with Down syndrome or post-surgical knee instability. The patient received multiple concurrent interventions, including mobilization, active exercise, and eventually orthotic insoles, making it impossible to isolate the specific contribution of external focus training. Manual muscle testing was not performed due to the patient's cognitive limitations, leaving muscle strength data incomplete.
Declared interests
Funded by a Grant-in-Aid for Community Research from Ibaraki Prefectural University of Health Sciences. No other conflicts declared.
The easy way to misread this
Do not assume external focus training alone caused the recovery. The patient also received joint mobilization, progressive weight-bearing exercises, and was fitted with insoles for flat feet, so the specific effect of the attentional strategy cannot be separated from the physical rehabilitation.